Examine source code of ESCfans.de

{
  "theme": {
    "images": {
      "theme_frame": "persona.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#9efadb"
    }
  },
  "version": "2.0",
  "name": "ESCfans.de",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/705438aa108e9bee1c54091792563231acd96438155c1ea5480e81edc6acc632/http%3A//ESCfans.de\" rel=\"nofollow\">ESCfans.de</a>"
}